A cool-mist humidifier that helps with dryness and congestion features a sound machine, nightlight and variable output control for customizable relief.What it does: It offers variable output settings and an adjustable 360-degree mist lid. The mist output is perfect for humidifying rooms up to 500 square feet. The humidifier includes an aroma tray for vapor pads or unscented pads so you can add essential oil to the humidifier. It also includes an additional built-in color-changing nightlight.Additional features: The humidifier runs up to 24 hours and is also equipped with an automatic shut-off safety feature that turns the unit off when the water runs out. There is a built-in color changing nightlight, too.Sizing information: Holds one gallon. BPA-free Plastic Wipe clean Imported